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The Chromatic Sum And Efficient Tree Algorithms, Ewa Kubicka

Dissertations

In Chapter I this concept is introduced. It is shown that computing the chromatic sum is NP-complete. For every natural k the smallest tree which needs k colors to attain its chromatic sum is constructed. It is demonstrated that asymptotically, for each k, almost all trees require more than k colors to achieve their chromatic sums. Also a linear algorithm for a single tree is presented.

In Chapter II three constructions of graphs that require t colors beyond their chromatic number k to achieve their chromatic sum are presented, depending on the ratio ${\rm t}\over{\rm k}$. The order of the …

Measures Of Partial Association Based On Rank Estimates, Sudhakar H. Rao

Dissertations

No abstract provided.

Greatest Common Subgraphs, Grzegorz Kubicki

Dissertations

No abstract provided.

The Relationship Of Supplemental Instruction And Final Grades Of Students Enrolled In High-Risk Courses, Sally A. Pryor

Dissertations

The purpose of this study was to determine if there was a significant relationship between attendance at Supplemental Instruction (SI) and final course grades. This study focused on a program where only undergraduate students led SI sessions. The subjects were 268 students enrolled in three high-risk science courses at a public university in the Midwest during fall semester 1988.

Three research hypotheses were investigated: (1) There is a significant relationship between level of attendance at SI and final course grades. (2) Students who attend SI earn significantly higher final course grades than students who do not attend SI. (3) There …

Design Of A Program Of Instruction To Teach State Notation, Esther Hannah Shafer

Dissertations

The process of programming instruction involves a series of steps which include determining the need for programming instruction on a particular topic, choosing the appropriate programming method, and a series of approximations toward the final program through testing and revision. State notation (Michael, 1986), a notation system which is used to visually represent procedures such as those used in an operant laboratory setting, was deemed an appropriate topic for programmed instruction since the complex decisions that learners must make when diagramming are difficult to teach using conventional methods. Mathetics (Gilbert, 1962) was chosen as an appropriate programming method for state …

An Analysis Of The Content And Methods Of Instruction At Michigan Institutions That Prepare Principals, Thomas E. Engel

Dissertations

The purpose of this study was to analyze the content and the methods of instruction of programs that prepare principals in Michigan. The study sought to answer three specific questions: (1) To what extent do the programs develop the generic skills required of principals? (2) To what extent do the programs develop the specific skills required of principals? (3) What are the dominant methods of instruction used in the programs?

The study was conducted using the rating exercises recommended in the NASSP's 1985 monograph Performance-Based Preparation of Principals. At each of five Michigan universities, a team of raters were asked …

A Content Comparison Of Nontechnical Curricula For Engineers, Bryan Lynn Lundgren

Dissertations

The purpose of the study was to compare and critique the nontechnical curricula content of three Bachelor of Science in Engineering (BSE) degree program model curricula. Curricula content areas that are similar were critiqued by employers of engineers. Model curricula importance and first year BSE nontechnical skill performance were rated by engineering supervisors. The main postulate is that differences among actual, model, and employer-desired nontechnical curricula are factors that may influence curricula change in engineering education. A secondary purpose was to investigate whether the proportion of nontechnical courses to total required courses in BSE college degree programs changed between 1975 …

Biodegradation Of Benzene And A Btx Mixture Using Immobilized Activated Sludge, Mayur Padamshi Lodaya

Dissertations

Aerobic biodegradation of benzene was studied using activated sludge immobilized in calcium alginate (immobilization by entrapment), and also attached to a silica based catalyst.support (immobilization by attachment). Hydrogen peroxide was used as a source of dissolved oxygen to eliminate physical removal of benzene due to aeration. Abiotic losses of benzene were accounted for.

A recirculation reactor, run in both batch and continuous feed mode, was used to determine the kinetic parameters. The system response was examined by tollowing changes in benzene concentration, flow rate, and biomass loading. The system was modeled mathematically and the kinetic parameters were determined.

Biological removal …

Kinematic Synthesis Of Mechanisms For Multiply Separated Positions, Hyoung Jun Kim

Dissertations

The rigid body motion is studied in a combination of finitely and infinitesimally separated positions in planar, spherical, and spatial kinematics. A general new method for determining the locations of points and/or lines in a rigid body moving through finitely and infinitesimally separated positions is developed. These points and/or lines would satisfy the constraints of various types of binary links for planar, spherical, and spatial mechanisms.

A unified form of circle-point curve equation is derived for finitely and multiply separated position problems in planar and spherical motions. A graphical method to construct the circle-point and center-point curves and Ball point …

Fault-Tolerant Interconnection Networks For Multiprocessor Systems, Hamed Mohamed Nassar

Dissertations

Interconnection networks represent the backbone of multiprocessor systems. A failure in the network, therefore, could seriously degrade the system performance. For this reason, fault tolerance has been regarded as a major consideration in interconnection network design. This thesis presents two novel techniques to provide fault tolerance capabilities to three major networks: the Baseline network, the Benes network and the Clos network.

First, the Simple Fault Tolerance Technique (SFT) is presented. The SFT technique is in fact the result of merging two widely known interconnection mechanisms: a normal interconnection network and a shared bus. This technique is most suitable for networks …

Air Stripping Of Volatile Organic Contaminants Using Rotating Disc Contactor, Kai-Ping Hsueh

Dissertations

Previous studies have suggested that the transfer of VOCs to the atmosphere by air stripping may be a convenient and potentially cost-effective method to remove these compounds from the water. A Rotating Disk Contactor (RDC), similarly to other aeration devices, can provide intimate contact between the VOC-bearing water and air. It is believed that under carefully selected operating conditions, the RDC system are more competitive with packed tower than other aeration methods. The objectives of this study were to evaluate the feasibility of using the RDC to strip VOCs from the contaminated water and to develop a mathematical model to …

Permeability And Volume Change Characeristics Of Bentonite-Sand Mixes In A Contaminant Environment, Yuan-Hsun Wu

Dissertations

This research was conducted to study the characteristics of permeability and volume change of bentonite-sand mixes due to contaminants. The soil specimens consisted of clean sand, bentonite, and fly ash. Test liquids included seven diluted organic and inorganic chemicals and a landfill leachate.

Index tests included liquid limit, expansion, cracking, and sedimentation tests. Expansion tests proved to be the most useful for permeability evaluation in a contaminant environment.

The conventional consolidometer permeameter and flexible wall permeameter proved to be not completely satisfactory for testing soft bentonite mixes. A triple ring permeameter was developed to compensate for the limitations of these …

Specified Subgraphs And Subgraph-Defined Parameters In Graphs, Karen S. Holbert

Dissertations

No abstract provided.

Coefficients Of Multiple Determination Based On Rank Estimates, Lee D. Witt

Dissertations

No abstract provided.

An Analysis Of The Special Education Services For Children And Youth In Costa Rica, Beatriz Villarreal Edd

Dissertations

An analysis of Costa Rica special education services was developed with the objective of analyzing its school programs, its university teacher training programs and the quality overall of services provided in the country. Program indicators of quality special education services were delineated with the purpose of comparing the degree to which these indicators were present in the special education programs of Costa Rica. Questionnaires, interviews, observations, and a review of literature were used to obtain a comprehensive description of special education services in Costa Rica. A quality special education school was subsequently designed based on the quality educational programs indicators …

A Study Of The Impact Of A Quality Circle On A Public Secondary School In Southern California, Ronald E. Williams Edd

Dissertations

The goal of this research was to establish a quality circle at a Southern California public high school and to determine what effect the quality circle process would have on problem resolution and communication at that specific institution. The circle was composed of eight faculty members who volunteered plus an administrator who served as the facilitator. The circle met weekly for one school year. The objectives of this study were twofold. The first was to utilize the quality circle as a process to identify, analyze, and solve specific school concerns selected by quality circle members. The second objective was to …

Students On Academic Probation: Factors Related To Help Rejection, Sharon L. Silverman

Dissertations

No abstract provided.

A Study Of The Relationship Between The Educational-Instructional Emphasis And The Administrative-Managerial Emphasis In The Role Of The Illinois School Principal, Roy L. Stephens

Dissertations

No abstract provided.

Isaac Leon Kandel: A Pioneer In Comparative And International Education, Erwin W. Pollack

Dissertations

No abstract provided.

Biofeedback Training In Counselor Education (Programs): North Central Region, David Montrose

Dissertations

No abstract provided.

Multinuclear Magnetic Resonance Studies Of Lithium Binding And Transport In Human Erythrocytes, Maryceline Tiausas Espanol

Dissertations

No abstract provided.

Rotoreflected Double-Beam Thermal Lens Spectrometry And Simultaneous Thermal Lens And Fluorescence Detection For High Performance Microbore Liquid Chromatography, Steven Craig Hall

Dissertations

No abstract provided.

An Analysis Of The Relationship Between Student Achievement And Various School Factors In Selected Iowa School Districts, Thomas Emrick

Dissertations

No abstract provided.

The Quest For Excellence: A Study Of The Improvement Of Student Achievement In Valley View Community Unit District 365u, 1960-1988, Patricia B. Smith

Dissertations

No abstract provided.

The Effects Of Metacognitive Strategies And Social Interaction Upon Mathematics Learning: A Reciprocal Teaching Study, Denis W. Rudy

Dissertations

No abstract provided.

Binding And Transport Properties Of Lithium In Red Cells From Hypertensive Patients And Normotensive Controls, Ravichandran Ramasamy

Dissertations

No abstract provided.

Synthesis And Study Of N-(4-Nitrobenzofurazan)-Monoaza-18-Crown-6: A Metal Sensitive Fluorophore, Shelley A. Krause

Dissertations

No abstract provided.

Structural And Functional Studies Of The Plant Lectin Peanut Agglutinin, Eugene J. Zaluzec

Dissertations

No abstract provided.

An Analysis Of The Evaluation Process For Public High School Principals In Cook, Dupage, Lake, Mchenry And Will Counties, Illinois, Laura F. Murray

Dissertations

No abstract provided.

A Study Of The Discriminative Function Of Six Variables In 9-12-Year-Old Males With Learning Disabilities, Kenneth M. Hanig

Dissertations

Problem

Greater discriminative power to clarify the diagnostic category of learning disabilities is needed. Research identifies many types of learning disabled populations. Studies do not indicate that the six variables used in this project had been combined and used in a project prior to this. Using measures such as Sentence Repeat, Synonyms, Digits Forward/Backwards, Design Copy, Nonsense Words, and Visual Pattern Matching, this project studied the responses of an LD sample to these subtests and their ability to discriminate among a verbally impaired sample, a spatially impaired sample, and a control group.

Method

Six subtests were developed, which, according to …